220120021010 has 16 divisors (see below), whose sum is σ = 419522863896. Its totient is φ = 82868713728.

The previous prime is 220120020983. The next prime is 220120021057. The reversal of 220120021010 is 10120021022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 207951504289 + 12168516721 = 456017^2 + 110311^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220120020982 and 220120021000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647411657 + ... + 647411996.

Almost surely, 2^220120021010 is an apocalyptic number.

220120021010 is a deficient number, since it is larger than the sum of its proper divisors (199402842886).

220120021010 is a wasteful number, since it uses less digits than its factorization.

220120021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294823677.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220120021010 its reverse (10120021022), we get a palindrome (230240042032).

The spelling of 220120021010 in words is "two hundred twenty billion, one hundred twenty million, twenty-one thousand, ten".